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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 8 |
| 6 | 14 |
| 7 | 24 |
| 8 | 43 |
| 9 | 76 |
| 10 | 136 |
| 11 | 242 |
| 12 | 431 |
| 13 | 764 |
| 14 | 1353 |
| 15 | 2387 |
| 16 | 4202 |
| 17 | 7376 |
| 18 | 12918 |
| 19 | 22567 |
| 20 | 39338 |
| 21 | 68421 |
| 22 | 118765 |
| 23 | 205743 |
[1,1,2,3,5,8,14,24,43,76,136,242,431,764,1353, 2387,4202,7376,12918,22567,39338,68421,118765, 205743] |